Useful Advice - Telwin Geminy 11 Manual De Instrucciones

5. OPERATION
BEFORE CHARGING
NB: Before charging check that the capacity of
the battery (Ah) which is to be charged, is not
inferior to that reported on the data plate. (C
min).
Follow the instructions, taking great care to
respect the order given below.
- Remove the caps of the battery (if present) to
allow release of the gases produced during
charging.
- Check that the level of the electrolyte covers the
plates of the battery. If these are not covered add
distilled water and cover them up by 5-10 mm.
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WARNING: TAKE THE GREATEST CARE
D U R I N G T H I S O P E R AT I O N A S T H E
ELECTROLYTE IS A HIGHLY CORROSIVE ACID.
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Please remember that the exact charge status of the
battery can only be determined by using a
densimeter which allows measurement of the
specific gravity of the electrolyte; the following
indicate approximate density values for the solute
(Kg/l at 20°c):
1.28 = charged battery
1.21 = half-charged battery
1.14 = flat battery
- Check the battery voltage and make sure that the
settings on the battery charger panel are
compatible with the specifications for the battery
to be charged.
- Check the polarities of the battery terminals:
positive for the + symbol and negative for the -
symbol.
NOTE: if the symbols are indistinguishable
remember that the positive terminal is the one not
connected to the vehicle chassis.
- Connect the red charge clamp to the positive
terminal of the battery ( + symbol).
- Connect the black charge clamp to the vehicle
chassis, at a safe distance from the battery and
the fuel pipe.
NOTE: if the battery is not installed in the vehicle,
connect the clamp directly to the negative
terminal of the battery (- symbol).
CHARGING
- Power the battery charger by inserting the power
supply cable in the mains outlet.
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WARNING: SEALED BATTERIES.
If you need to charge this type of battery, be most
careful. Charge slowly and keep on checking the
voltage over the battery terminals. When this
voltage reaches 14.4 / 28.8 Volt (this can be easily
detected by a normal tester) it is advisable to
stop charging.
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END OF CHARGING
- Disconnect the power supply to the battery
charger by disconnecting the cable from the
mains outlet.
- Disconnect the black charge clamp from the
chassis of the vehicle or from the negative
terminal of the battery (- symbol).
- Disconnect the red charge clamp from the positive
terminal of the battery (+ symbol).
- Store the battery charger in a dry place
- Close up the battery cells with the appropriate
caps (if present).
6. BATTERY CHARGER PROTECTIONS
The battery charger is equipped with safety cutouts
that trigger in the event of:
- Overload (too much current delivered towards the
battery).
- Short circuit (charging clamps set in contact with
one another)
- Inversion of polarity on battery terminals.
For battery chargers equipped with fuses, it is
necessary, in case of substitution of fuses, to use
spares having the same nominal current value as
the fuse changed.
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WARNING: If fuses with current values
different from those given are used this could
cause damage to people or objects. For the
same reason never, ever, substitute the fuse with
a copper (or other material) bridge.
The substitution of the fuses is to be done when
the mains cable is DISCONNECTED from the
mains.
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7. USEFUL ADVICE

- Clean the positive and negative terminals of
possible oxidation so as to ensure good contact
with the clamps.
- Never ever allow the two clamps to come into
contact when the battery charger is plugged into
the mains.
- If the battery charger is used with a battery which
is always connected to a vehicle, check the
instruction and/or maintenance manual of the
vehicle under the paragraph: "ELECTRIC
SYSTEM" or "MAINTENANCE". Before charging
it is advisable to disconnect the positive cable
which is part of the electrical system of the
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